import { parseTime } from './base'

/**
 * 表格时间格式化 (只能转化为指定格式)
 * @example formatDate('2023-4-23 9:11:8')
 */
export function formatDate(cellValue) {
	if (cellValue == null || cellValue == '') return '';
	var date = new Date(cellValue)
	var year = date.getFullYear()
	var month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1
	var day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate()
	var hours = date.getHours() < 10 ? '0' + date.getHours() : date.getHours()
	var minutes = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()
	var seconds = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds()
	return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds
}
/**
 * 时间判断 （只能判断3个月以内，超出则显示传入时间的标准时间格式）
 * @param {string|number} time 时间戳或者'2023-10-15 9:11:08'类型
 * @returns {string}
 * @example formatTimeAgo(1700035201818)||formatTimeAgo('2023-10-15 9:11:08')
 */
export function formatTimeAgo(time) {

	// 将传入的时间全部转换为时间戳
	let date = new Date((parseTime(time))).getTime()

	// 一个时间毫秒，注意时间戳是秒的形式，在这个毫秒的基础上除以1000，就是十位数的时间戳。13位数的都是时间毫秒。
	var minute = 1000 * 60;      //把分，时，天，周，月用毫秒表示
	var hour = minute * 60;
	var day = hour * 24;
	var week = day * 7;
	var month = day * 30;
	var now = new Date().getTime();   //获取当前时间毫秒
	var diffValue = now - date;//时间差
	if (diffValue < 0) {
		return;
	}
	var minC = diffValue / minute;  //计算时间差的分，时，天，周，月
	var hourC = diffValue / hour;
	var dayC = diffValue / day;
	var weekC = diffValue / week;
	var monthC = diffValue / month;

	if (monthC >= 1 && monthC <= 3) {
		return '' + parseInt(monthC) + '月前'
	} else if (weekC >= 1 && weekC <= 3) {
		return '' + parseInt(weekC) + '周前'
	} else if (dayC >= 1 && dayC <= 6) {
		return '' + parseInt(dayC) + '天前'
	} else if (hourC >= 1 && hourC <= 23) {
		return '' + parseInt(hourC) + '小时前'
	} else if (minC >= 1 && minC <= 59) {
		return '' + parseInt(minC) + '分钟前'
	} else if (diffValue >= 0 && diffValue <= minute) {
		return '刚刚'
	} else {
		return parseTime(date)
	}
}

/**
 * @description 将url的查询参数解析成字典对象
 * @param {string} url
 * @returns {Object}
 * @example getQueryObject("http://www.w3school.com.cn/tiy/t.asp?f=js_library_jquery"):Object{f:"js_library_jquery"}
 */
export function getQueryObject(url) {
	url = url == null ? window.location.href : url
	const search = url.substring(url.lastIndexOf('?') + 1)
	const obj = {}
	const reg = /([^?&=]+)=([^?&=]*)/g
	search.replace(reg, (rs, $1, $2) => {
		const name = decodeURIComponent($1)
		let val = decodeURIComponent($2)
		val = String(val)
		obj[name] = val
		return rs
	})
	return obj
}

/**
 * 返回utf8字符串的字节长度
 * @param {string} str
 * @returns {number}
 */
export function byteLength(str) {
	let s = str.length
	for (var i = str.length - 1; i >= 0; i--) {
		const code = str.charCodeAt(i)
		if (code > 0x7f && code <= 0x7ff) s++
		else if (code > 0x7ff && code <= 0xffff) s += 2
		if (code >= 0xDC00 && code <= 0xDFFF) i--
	}
	return s
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray(actual) {
	const newArray = []
	for (let i = 0; i < actual.length; i++) {
		if (actual[i]) {
			newArray.push(actual[i])
		}
	}
	return newArray
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json) {
	if (!json) return ''
	return cleanArray(
		Object.keys(json).map(key => {
			if (json[key] === undefined) return ''
			return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
		})
	).join('&')
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
	const search = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ')
	if (!search) {
		return {}
	}
	const obj = {}
	const searchArr = search.split('&')
	searchArr.forEach(v => {
		const index = v.indexOf('=')
		if (index !== -1) {
			const name = v.substring(0, index)
			const val = v.substring(index + 1, v.length)
			obj[name] = val
		}
	})
	return obj
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val) {
	const div = document.createElement('div')
	div.innerHTML = val
	return div.textContent || div.innerText
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
	if (typeof target !== 'object') {
		target = {}
	}
	if (Array.isArray(source)) {
		return source.slice()
	}
	Object.keys(source).forEach(property => {
		const sourceProperty = source[property]
		if (typeof sourceProperty === 'object') {
			target[property] = objectMerge(target[property], sourceProperty)
		} else {
			target[property] = sourceProperty
		}
	})
	return target
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element, className) {
	if (!element || !className) {
		return
	}
	let classString = element.className
	const nameIndex = classString.indexOf(className)
	if (nameIndex === -1) {
		classString += '' + className
	} else {
		classString =
			classString.substr(0, nameIndex) +
			classString.substr(nameIndex + className.length)
	}
	element.className = classString
}

/**
 * @param {string} type
 * @returns {Date}
 */
export function getTime(type) {
	if (type === 'start') {
		return new Date().getTime() - 3600 * 1000 * 24 * 90
	} else {
		return new Date(new Date().toDateString())
	}
}

/**
 * @description 防抖函数
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
	let timeout, args, context, timestamp, result

	const later = function () {
		// 据上一次触发时间间隔
		const last = +new Date() - timestamp

		// 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
		if (last < wait && last > 0) {
			timeout = setTimeout(later, wait - last)
		} else {
			timeout = null
			// 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
			if (!immediate) {
				result = func.apply(context, args)
				if (!timeout) context = args = null
			}
		}
	}

	return function (...args) {
		context = this
		timestamp = +new Date()
		const callNow = immediate && !timeout
		// 如果延时不存在，重新设定延时
		if (!timeout) timeout = setTimeout(later, wait)
		if (callNow) {
			result = func.apply(context, args)
			context = args = null
		}

		return result
	}
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
	if (!source && typeof source !== 'object') {
		throw new Error('error arguments', 'deepClone')
	}
	const targetObj = source.constructor === Array ? [] : {}
	Object.keys(source).forEach(keys => {
		if (source[keys] && typeof source[keys] === 'object') {
			targetObj[keys] = deepClone(source[keys])
		} else {
			targetObj[keys] = source[keys]
		}
	})
	return targetObj
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr(arr) {
	return Array.from(new Set(arr))
}

/**
 * @returns {string}
 */
export function createUniqueString() {
	const timestamp = +new Date() + ''
	const randomNum = parseInt((1 + Math.random()) * 65536) + ''
	return (+(randomNum + timestamp)).toString(32)
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele, cls) {
	return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele, cls) {
	if (!hasClass(ele, cls)) ele.className += ' ' + cls
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele, cls) {
	if (hasClass(ele, cls)) {
		const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
		ele.className = ele.className.replace(reg, ' ')
	}
}

export function makeMap(str, expectsLowerCase) {
	const map = Object.create(null)
	const list = str.split(',')
	for (let i = 0; i < list.length; i++) {
		map[list[i]] = true
	}
	return expectsLowerCase
		? val => map[val.toLowerCase()]
		: val => map[val]
}

export const exportDefault = 'export default '

/**
 * 首字母大小
 * @param {string} str
 */
export function titleCase(str) {
	return str.replace(/( |^)[a-z]/g, L => L.toUpperCase())
}

/**
 * 下划转驼峰
 * @param {string} str
 */
export function camelCase(str) {
	return str.replace(/_[a-z]/g, str1 => str1.substr(-1).toUpperCase())
}
/**
 * 判断是否是纯数字字符串
 * @param {string|number} str 字符串或纯数字都会返回true
 * @returns {boolean}
 */
export function isNumberStr(str) {
	return /^[+-]?(0|([1-9]\d*))(\.\d+)?$/g.test(str)
}

